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San Francisco, United States

Research Engineer

Raydar · San Francisco · United States

Salary
$150,000–$200,000 per year
Contract
Full time

Posted: 10/12/2026 · Last checked: 10/28/2026

Job description

Quoted in full from Raydar's job posting. Gavroche does not edit it.

About the company

Our client is a fast-growing technology company.

The role

Raydar is recruiting for this role on behalf of our client. Build and run evaluation and reinforcement learning task pipelines for coding-focused AI models, working directly with external customers from the first day. The role grows over roughly six months from hands-on engineering into leading a small team of engineers.

What you'll do

- Design and build coding evaluations and reinforcement learning tasks, along with the pipeline that produces them.

- Run evaluations of leading AI models against an internal benchmark and a set of representative tasks.

- Partner directly with customers, quality-checking deliverables and shipping to specification.

- Build reinforcement learning tasks hand in hand with customers as the engagement matures.

- Grow into leading a team of engineers over the first several months.

Requirements

What we're looking for

- Solid working knowledge of reinforcement learning, coding-focused RL, evaluations, harnesses, benchmarks and post-training; this is a firm requirement.

- A blend of research intuition and the engineering skill to build tasks and evaluations.

- Prior experience at a data company, or concrete self-driven evidence such as a benchmark you built or a post-training side project.

- High energy, strong drive and a hunger to learn and do as much as possible.

- High agency, a strong work ethic, integrity and an earnest attitude toward learning.

- Roughly 1 to 5 years of relevant experience.

Bonus points

- Research experience at a strong lab or university.

- Interest in starting a company someday.

- Relocating to the Bay Area from outside the region and a deep curiosity about AI.

Benefits

Compensation and benefits

- Base salary: USD 150,000 to 200,000 per year

- Equity

- Health insurance

Location and work model

- San Francisco, California, United States

- On-site, in office

- Full-time

From Gavroche data

Figures computed from live adverts on Gavroche; the job text above is the employer's.

New openings in San Francisco, by week

  1. 8/3/2026 143
  2. 8/10/2026 193
  3. 8/17/2026 211
  4. 8/24/2026 210
  5. 8/31/2026 295
  6. 9/7/2026 271
  7. 9/14/2026 332
  8. 9/21/2026 390
  9. 9/28/2026 470
  10. 10/5/2026 431
  11. 10/12/2026 515
  12. 10/19/2026 370
  13. 10/26/2026 218

4,049 openings over 12 weeks, by the week they were published.

Other roles at Raydar

749 open, including roles outside the United States.